很明确是一张rx550的同级别显卡，由于流处理器640比rx550的512数量稍微多15%，加上核心频率提升了一点点，所以比rx550分数高一点点，但是从使用体验上来说，由于dell的这张卡是刀卡，无论是散热还是噪音都非常小，这小核心基本不发热，如果用于视频播放，应该是极好的选择。

随着amd rx 600系列的登场，很快笔电市场也会迎来一次小换代，各家将很快推出搭载哦rx 640、rx 630、rx 625、rx 620和rx 610的笔记本，当然更多只是入门级商用、多媒体以及娱乐本，近期有打算入手入门级笔记本的可关注。

2023年5月25日 · And also the Rx 640 has less memory bus width with a 64-bit bus and the Rx 550 has a 128-bit bus. My pc specs are I7 8700 I switched from a I3 9100 to a I7 8700, 16 Gb ram 3600 mhz but my dell optiplex can can only handle at 2666 mhz, and a 512 Gb ssd

2019年8月13日 · This GPU is not even close to the RX 480, even the RX 460 is faster than the RX 640. This is a rebrand of the RX 550, not much to expect performance wise and mostly for OEMs (though if they sold it as a $50 low powered desktop GPU it could be quite valuable for media playback paired with an R5 1600 for a media server/NAS combo that I thought of ...

2019年5月13日 · In comparison the RX 200 series mixed 1st, 2nd, and 3rd gen GCN parts, along with some Terrascale 2 cards. While RX 200 originally released with 1st gen GCN 1 think it's fair to describe it as really 2nd gen GCN as HD7000 was …

如何评价 ThinkPad E14 笔记本发布：i5-10210U+RX 640，售价 5999 元？ 10月3日消息 近日，联想ThinkPad 悄然推出了E14笔记本，搭载了英特尔最新的10代酷睿（14nm）处理器，和AMD刚刚推出的马甲卡RX 64…

2022年4月16日 · Dell made a whole bunch of OEM ones Basically the RX 550X got scrapped and they turned it into the 640 which was meant to get put in budget gaming laptops but was ...

Confusingly, the RX 640 can have either 8 or 10 CU according to AMD's site. It's also said to come with 4GB. So it's a bit hard to judge exactly. Would also have helped if you had posted the model, though I assume you're talking about the Lenovo ThinkPad E14. I haven't seen a review of that, but basically, the RX 640 is an entry level chip.

2020年4月9日 · 最简单的就是直接看前缀，前缀是NVIDIA GeForce 跟AMD Radeon RX或者HD是独显Vega要列出来单独讲，Vega64 Vega56 Vega32 Vega28是独显(当然后面两者你可能完全弄不到) Vega系列也有核显，只有前面四个是独显，剩下的Vega全是核显

以前Radeon 19.x版本显卡驱动设置里有个页面可以指定程序使用的显卡，但是升级到Radeno 20.x后，显卡驱动中就没有这个设置了。